Spray Foam Insulation

Have you been in your loft recently? Is it cold and damp? Our spray foam loft insulation will make all the difference. Take advantage of our Winter Offer of 30% discount on our roof insulation foam. Make your loft watertight, draught-proof and instantly usable. Stop condensation and mould and treat your roof now. We are the experts at fixing your roof and insulating it. Want 30% off Contact us today for a free roof MOT

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Advantages of polyurethane
roof insulation foam


Our Polyurethane spray loft insulation is designed to be 5% open cell. This creates the right balance of strength and rigidity whilst still allowing sufficient air movement to allow any moisture to evaporate.


A professionally restored, spray foam insulated roof will last the life of the building according to the BBA certificate from BASF. Our surveyor will carefully asses the condition of your existing roof tiles to ensure they have many years of serviceable life.

Energy efficiency

Our Polyurethane foam loft insulation solution is an excellent material. Spray foam insulation can reduce the heat loss through your roof by up to 80%.

Lack of disruption

Once any remedial work has been carried out (this is usually inexpensive and non-disruptive) a spray foam installation can usually be completed in a day or two, depending on size and access. Compare this to a full re-roof which might take at least 3 weeks, involving full scaffolding and potential risk of damage from adverse weather.


Our polyurethane spray foam is surprisingly strong. When bonded directly to the back of the tiles it makes the entire roof a single, extremely strong but flexible structure. Loose tiles blown off by storms are something for other people to worry about. Even sprayed to the felt it adds rigidity to the structure extending the life of the building.

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Our Spray Foam Insulation Process

Adding spray foam loft insulationbenefits of spray loft insulation

Free Roof MOT & Survey to identify and essential remedial works

Then, subject to your approval one our experienced roofing teams will make the necessary repairs before sealing and strengthening your roof with the polyurethane spray foam. All works are carried out with the minimum of fuss and mess and we will leave your roof warm, dry and tidy.

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Before installing roof insulation foamAfter installing roof insulation foam

Adding spray foam to your property

Depending on the design and structural condition of your roof the foam can be used to bond roof tiles securely in place ensuring the integrity of your roof even in the worst of weather conditions. The spray foam is applied to the underside of your roof creating a warm usable loft space and reduces heat-loss by up to 80%.

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Loft before Spray Foam InsulationLoft after Spray Foam Insulation

Workmanship guaranteed for 10 years

Our attention to detail and quality workmanship allows us to guarantee your roof to be free from leaks and damage for a period 10 years plus the manufacturers lifetime product guarantee.

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Contact us today for a free roof MOT

Book a free visit with our friendly and qualified surveyors who will investigate the integrity of the structure, the state of the existing materials such as timbers, fixings, under felt and existing insulation. We will then establish and discuss with you the best approach to improve the condition of the roof. The survey carries no obligation and can be carried out at a time convenient to you.

Frequently Asked Questions

When is a spray foam restoration not appropriate?

The main reason for not recommending a spray foam restoration is if the condition of the majority of existing roof tiles have deteriorated such that they are fragile and crumbling. Other possibilities are that there is structural damage to the roof timbers, perhaps caused by un-treated water ingress. If it is beyond repair we would recommend a full tile and felt re-roof. Our free roof MOT and survey will uncover any such issues and we will be able to advise you of the options.

How much does spray foam insulation cost?

Our Spray Foam is breathable, fire retardant product and when installed correctly by our experts it will last a lifetime. Installing spray foam insulation for an average three bedroom house would cost between £3,000 and £5,000. Obviously, this is dependent on the amount of work required so we would never provide a professional quote without thoroughly examining the roof. The price is cheaper than a reroof, better insulated and fully guaranteed. We will price match any other company using the same quality product.

Is spray foam insulation flexible?

Once installed the sprayfoam will accept a substrate linear movement of up to 5%, this allows for thermal movement within the slates/tiles and even on thin tin roofs there is virtually no possibility of expansion/contraction of that amount. As an example a normal slate on a roof would have to expand more than ½” widthways in a short space of time to fracture the bond of the foam. In terms of frame movement, again the foam will accept up to 5% linear movement - which more than compensates for movement within the frame.

Is spray foam insulation breathable?

Yes. The Foamroof sprayfoam has a 90% closed cell structure ensuring that timbers can continue to breathe once treated.

Does spray foam insulation lock the damp in?

No. Our sprayfoam is permeable. Through extensive experience we do not encapsulate timbers. We spray between the timber joists as opposed to over them, which increases the surface area for any existing damp to naturally dry out. Normally timbers are found to be damp because of: wind driven rain, failure of the external surface – normally tiles/slates have slipped, pointing has been washed away and flashings have lifted or failed. Foamroof repair these issues prior to any application of our sprayfoam.

Is spray foam insulation fire resistant?

Our sprayfoam contains fire retardants as part of the raw materials, this allows the foam to achieve a Class 1 Surface Spread of Flame rating to BS 476 Part 7: 1997 without the need for additional coatings/linings.


Our highly-skilled, surveyors and craftsmen deliver a first-class service to customers looking to resolve their roofing problems and provide long-term peace of mind. But don't just take our word for it!

Foamroof repaired and insulated our older, residential roof. Tradesmen were helpful, professional, responsive and flexible throughout a somewhat complicated, multi-stage project. The finished work was well-done and it was a good experience - I'd work with them again.

Testimonial Author

Michael Jacobs


Foamroof teams were professional, fast, and thorough. Their office staff were also prompt and easy to work with. The company gave us a guarantee for our roof as well - now we can go on with our business without having to worry about our roof. Thanks guys!

Testimonial Author

Martin Lewis


My experience with this company was positive from beginning to end. I met the surveyor when he came to give me a quote. He was clear, knowledgeable and available to send over of their roofing team within a week and spray team the following week.

Testimonial Author

Karlin Brown


This company is far superior to the others as they employ they’re guys. They offered a much more competitive price and far superior service. I would strongly recommend this company if you're considering a new roof or just spray foam.

Testimonial Author

Macy Brown


I am extremely satisfied with the quality, price and the timeliness of the foam roof installed on my roof. Everything went like clockwork, and I am a very happy. I strongly recommend Foamroof for anyone who is considering having a foam roof installed on their residence.

Testimonial Author

Nathan Todd


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We guarantee

  • You will be seen by an expert
  • Modern breathable products
  • Manufacturer and insurance backed guarantees 
  • Clean, quality installation
  • Fully employed experts
  • Trained and inspected by the BBA

Our Approach

Our specialists use a unique, professional and holistic approach to identify and fix your insulation issues. We take photos of each stage. Our approval ratings are high and we are certified by the most recognised national standard agencies and are PAS 2030 approved.